[c-nsp] Nexus 5548 Questions and experiences...

[Scott Voll]

We have just started our move from a 4506E to a set of 5548's.  NXOS is a
little different from IOS.  Learn the vPC, and such will be a good thing.
 as someone already stated, having one is not the best design.  With all
the 10 Gig stuff running, what are you going to use for layer 3?

we went with the 5548's, but there are some design considerations to be
made.  my understanding is you can't do a Non interrupting upgrade.  Was
not my plan originally, and makes upgrades more of a problem (especailly
with Storage running through them also), thus I'm back to what ever you
install will be on it until we by new hardware.  Thus we went with the 5.2
flavor, having been burned on .0 stuff way to often.

we have a Cisco Blade chassis with multiple blades.  very happy with the
TwinAX cables.  So long as you get the right sizes.  I don't like looping
them a bunch.  But it's hard to order before you get them in, with out
knowing were everything will be racked.

also another note, you will not want to place any IOS switches hanging off
the 2k's.  They don't support Spanning tree and will error disable your
port.  Wish I would have known that before buying a 5548.  Might have went
bigger.

YMMV

Scott


On Thu, May 16, 2013 at 7:35 AM, Blake Pfankuch - Mailing List <
blake.mailinglist at pfankuch.me> wrote:

> Within the next week I will be starting my first dive into Nexus.  I have
> read the Cisco Press book for nexus, however its primarily focused on 4.x
> not 5.x and 6.x.
>
> I am looking for some real world feedback, including some of the gotchas
> people have found in existing deployments.  Really this will be a small
> deployment, a single 5548 for now and a couple 2232TM-E and 2224TP for
> fabric extenders.  What has been the experience using TwinAX cables to
> uplink to servers?  Cisco Twinax cables working only or have people been
> able to use HP/Sun/Dell provided cables with luck?  What's the experience
> with the Nexus B22 blade chassis FEX?
>
> OS suggestions?  Again this is going to be a new deployment, and its going
> into an environment that is not upgraded heavily.  As an example I have
> moved some devices off 12.2 (20) or earlier in the past few weeks.
>
> Thanks,
>
> Blake
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